Add ctrl+tab shortcut for changing tabs (rack and patchbay for now)

resources/ui/carla_host.ui

@@ -137,7 +137,7 @@
      <x>0</x>
      <y>0</y>
      <width>870</width>
-     <height>17</height>
+     <height>19</height>
     </rect>
    </property>
    <widget class="QMenu" name="menu_File">
@@ -786,6 +786,14 @@
     <string>Show External</string>
    </property>
   </action>
+  <action name="act_extra_next_tab">
+   <property name="text">
+    <string>Next Tab</string>
+   </property>
+   <property name="shortcut">
+    <string>Ctrl+Tab</string>
+   </property>
+  </action>
  </widget>
  <customwidgets>
   <customwidget>

source/carla_host.py

@@ -346,6 +346,8 @@ class HostWindow(QMainWindow):
         self.ui.act_help_about_juce.triggered.connect(self.slot_aboutJuce)
         self.ui.act_help_about_qt.triggered.connect(self.slot_aboutQt)
 
+        self.ui.act_extra_next_tab.triggered.connect(self.slot_tabsNext)
+
         self.ui.cb_disk.currentIndexChanged.connect(self.slot_diskFolderChanged)
         self.ui.b_disk_add.clicked.connect(self.slot_diskFolderAdd)
         self.ui.b_disk_remove.clicked.connect(self.slot_diskFolderRemove)
@@ -1301,6 +1303,18 @@ class HostWindow(QMainWindow):
     def slot_aboutQt(self):
         QApplication.instance().aboutQt()
 
+    # --------------------------------------------------------------------------------------------------------
+    # Extra (menu actions)
+
+    @pyqtSlot()
+    def slot_tabsNext(self):
+        nextTab = self.ui.tabWidget.currentIndex()+1
+
+        if nextTab > self.ui.tabWidget.count():
+            nextTab = 0
+
+        self.ui.tabWidget.setCurrentIndex(nextTab)
+
     # --------------------------------------------------------------------------------------------------------
     # Disk (menu actions)